You might also want to take a look at this independent study by Elcomsoft, which suggests that the only one of 12 password managers analyzed to truly use Apple's security features properly is DataVault.

As reported by Infosecurity, Elcomsoft also noted that "Only one password management app for the iOS platform, DataVault Password Manager, stores passwords in secure iOS-encrypted keychain."
DataVault uses AES and an advanced hashing algorithm to encrypt data, then stores it in the Apple Keychain for a second layer of protection. A hacker would need to crack the Apple Keychain to have a chance at decrypting information stored in DataVault. In metaphorical terms, this would be like breaking into Fort Knox only to find the Bank of England vault.
No security system is invincible. Ascendo will continue to monitor the work of security experts such as Elcomsoft to insure that DataVault offers the highest level of protection to our customers.

Looking for a password keeper/manager

1Password can sync with Dropbox or via wifi to your desktop or laptop. Dropbox sync is great because you can access your passwords wherever you can get to Dropbox even if you don't have 1Password installed. Going through Dropbox you can't add or edit info but you can access all of it.